Definition of Ullage. Meaning of Ullage. Synonyms of Ullage

Here you will find one or more explanations in English for the word Ullage. Also in the bottom left of the page several parts of wikipedia pages related to the word Ullage and, of course, Ullage synonyms and on the right images related to the word Ullage.

Definition of Ullage

Ullage
Ullage Ul"lage (?; 48), n. [OF. eullage, ovillage, the filling up of a cask, fr. ouillier, oillier, euillier, to fill a wine cask; properly, to add oil to prevent evaporation, as to a flask that is nearly full, fr. OF. oile oil. See Oil.] (Com.) The amount which a vessel, as a cask, of liquor lacks of being full; wantage; deficiency.

Meaning of Ullage from wikipedia

- Ullage or headspace is the unfilled space in a container, particularly with a liquid. The word ullage comes from the Latin word oculus, used by the Romans...
- Ullage motors (also known as ullage engines or ullage rockets) are relatively small, independently fueled rocket engines that may be fired prior to main...
- Ullage (from the French ouillage) is a winemaking term that has several meanings but most commonly refers to the headspace of air between wine and the...
- fully filled, and during use, there is a space above the fuel, called the ullage, that contains evaporated fuel mixed with air, which contains the oxygen...
- infeasible at the time. The upper stages also used small solid-propellant ullage motors that helped to separate the stages during the launch, and to ensure...
- open during flight when the ullage (empty space) pressure of the liquid hydrogen tank reaches 38 psi (260 kPa) or the ullage pressure of the liquid oxygen...
- perfectly with the retrorockets firing on the first stage to decelerate it and ullage rockets on the S-IV firing to settle its fuel to aft of the stage. After...
- small Auxiliary Propulsion System (APS) thruster modules were added as ullage motors for restarting the J-2 engine and to provide attitude control during...
- As propellant is drained from its tank, something must fill the vacated ullage space to maintain pressure inside the tanks. This is for two reasons: first...
- velocities. Simply: propellants pressurized by either pumps or high pressure ullage gas to anywhere between two and several hundred atmospheres are injected...